EP 3211316 A1 20170830 - PILOT NOZZLES IN GAS TURBINE COMBUSTORS
Title (en)
PILOT NOZZLES IN GAS TURBINE COMBUSTORS
Title (de)
PILOTDÜSEN IN GASTURBINENBRENNKAMMERN
Title (fr)
BUSES PILOTES DANS DES CHAMBRES DE COMBUSTION DE TURBINE À GAZ
Publication
Application
Priority
US 201615054623 A 20160226
Abstract (en)
A fuel nozzle 12 for a gas turbine engine that includes: an elongated centerbody 52; an elongated peripheral wall 50 formed about the centerbody so to define a primary flow annulus; a primary fuel and air supply in fluid communication with the primary flow annulus; and a pilot nozzle 40. The pilot nozzle, formed in the centerbody, may have axially elongated air and mixing tubes 41 extending between inlets and outlets defined, respectively, through upstream and downstream faces of the pilot nozzle. A secondary air supply may be communicate with the inlets of the air and mixing tubes. A fuel port may be positioned in the mixing tubes for connecting each to a secondary fuel supply. An uninterrupted sidewall sealing structure in each of the air tubes may segregate an air flow therethrough from the secondary fuel supply. The air and mixing tubes may be configured as canted tubes so to induce a downstream swirling flow.
IPC 8 full level
F23R 3/04 (2006.01); F23R 3/14 (2006.01); F23R 3/28 (2006.01); F23R 3/34 (2006.01); F23R 3/46 (2006.01)
CPC (source: CN EP US)
F02C 7/222 (2013.01 - US); F23R 3/045 (2013.01 - EP US); F23R 3/14 (2013.01 - EP US); F23R 3/283 (2013.01 - EP US); F23R 3/286 (2013.01 - CN EP US); F23R 3/343 (2013.01 - EP US); F23R 3/46 (2013.01 - EP US); F23C 2900/07001 (2013.01 - EP US); F23D 14/78 (2013.01 - EP US); F23D 2900/00014 (2013.01 - EP US); F23D 2900/00015 (2013.01 - EP US); F23R 2900/03044 (2013.01 - EP US); F23R 2900/03343 (2013.01 - EP US); Y02T 50/60 (2013.01 - EP US)
Citation (applicant)
US 6438961 B2 20020827 - TUTHILL RICHARD STERLING [US], et al
Citation (search report)
- [YA] US 2015253011 A1 20150910 - UHM JONG HO [KR], et al
- [Y] US 2016010864 A1 20160114 - ABE KAZUKI [JP], et al
- [A] US 2010293953 A1 20101125 - WILBRAHAM NIGEL [GB]
- [A] WO 2015166017 A1 20151105 - SIEMENS AG [DE]
- [A] US 5596873 A 19970128 - JOSHI NARENDRA D [US], et al
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3211316 A1 20170830; CN 107131521 A 20170905; JP 2017150806 A 20170831; US 2017248318 A1 20170831
DOCDB simple family (application)
EP 17157101 A 20170221; CN 201710103969 A 20170224; JP 2017027410 A 20170217; US 201615054623 A 20160226